Optical mounting



NOV. 15, 1932. PAPPERT 1,887,846

OPTICAL MOUNTING Filed May 1, 1929 nmmmnm .1

INVENTOR [rganue] Papperz A ORNEY .20 frame to break at the point ofattachment due P ed from the front, giving the pleasing ap- Patentedj-Nov. 15, 1932 i UNITED sTArEs PATENT OFFICE EMANUEL PAIPI'EBT, OF NEWYORK, N. Y.

OPTICAL MOUNTING Application filed m 1, 1929. Serial no. 359,439.

This invention relates to connecting ample, the lens frames arepreferably made bridges for eyeglasses and spectacles and is ofsuitablenon-metallic composition such as particularly designed torigidly connect cercellulold, zylonite, or the like, and are each taintypes of non-metallic lens frames such as provided with' the usual lensgroove 11 for' 5 those made of celluloid, .zylonite or other the'receptionof a suitable lens. The bridge composition, and to providesimple and eco- 12 which I employ to connect the lens frames, nomicalmeans for supporting the spectacles is preferably made of flat metalwire, the or eyeglasses upon the nose of the wearer. front face 14thereof being preferably set It has heretofore been diflicult to connectflush or even .with the front face 1 3 of the composition lens frames bymeans of a sepa l S fr meward th is end, and for the rate metal bridgeand to maintain the specpurpose of makmg a rigid connection betaoles soconnected, comparatively rigid, parw n he frames, and to prevent themetal at ticularly, if the bridge is removable. Clamps the n s of thebrldge from eutt1ng 1nt0 the of various types at the ends of the bridgeframe and thereby ultimately becomlng loose 15 have heretofore beenlargely used for this atjts'conneqtlon under purpose, but Such lam tendt t u d dl ng, the ends 15 of the'brldge are set mto a pressure upon thethin frame, to weaken the Suitable closely fi gg as Q the lens frameat-the point ofattachment, and n me nd eeeured In place therein. The tocut th'ereintofan'd ultimately cause the lens ge n P ItI IIS 15 remainvislble and exto the unavoidable stress exerted by the p arance of a hgh bridge,without sacrifice bridge at that point, when the spectaclesare f rlgidity. taken ofi and ut on byth wearer, The groove 16 is ofsubstantially the same My invention contemplates the provision Ze andshape-as the end 15 inserted t ei of a mounting which avoids the above.objec- Into, extending into the frame to a depth subtions, which ireadily dj t bl t th e stantlally equal to the thickness of said end ofthe wearer in all directions, which conand less than the thickness ofthe lens frame; nects the lens frames rigidly, and which n Order toprevent the side edges as 17 0 nevertheless allows the easy insertion ofthe the e d 15 om eutt ng-into the Sides of the lens into its frame. Myinvention further Ve n the spr ading apart 0f the lens may be readilyapplied to removable bridges, Miles 8 in han ling, S idfend 15 is firmlysothata bridge of such designas pleases the, secured n p iti n gainstany movement individual wearer may be connected to the relatively to theframe. lens frames. Furthermore, my improved I Pr r to do is y means fOne 01' more mounting gives the pleasing appearance of fastenerelements, such as rivets, screws or high bridge, while retaining therigid conthe like as" 18, pro ecting rearwardly from necting features ofa low bridge. the rear face 27 of the bridge. Said rivets The variousobjects of my invention m y be i g l i h, s rewed into, soldered beclear from the description which follows, Qr Otherwise firmly secured tothe end 15 and from the drawing, wherein, e 4 and are preferably made'inthe form of wire Fig. 1 is aperspective view of 'the preof sufficientlengthtopass through the frame ferred form of my improved mounting, andto have a rivet head as 20formed thereon. Fig. 2 is a vertical sectionthereof, taken on As illustrated in Figs. 3 and .4, tW spaced the line22 of Fig.1, 1 x rivets are provided for the purpose of se- Fig. 3 is aview similar to Fig. 1 of a modi curing the bridge in place at each end15,

fied form of my invention, and M said rivets passing through suitableholes ex Fig. 4 is a vertical section similar to Fig. 2, tending throughthe lens frame rearwardly thereof. from the front to the-back thereof.Said In that practical embodiment of my invenrivets may be readilyformed and secured to tion which I have illustrated by way of exthe end15 0f the bridge, by bendinga piece of wire into U-shape, and securingthe bottom of the U to the bridge end by soldering, while allowing thelegs of the U to pass through the holes in the frame.

:As illustrated in Figs. 1 and 2, however,

the nose guard may be omitted and separately formed so as to be readilyadjustable. In that case, I replace the lower rivet or leg of the U,with a longer wire 22, of suflicient length to be bent first downwardly,adjacent the rear face of the frame, and then rear wardly of the lensframe, and to enter a suitable nose guard spaced rearwardly of theframe. Said wire 22 may be ofa separate piece of material, if desired,and may be soldered or otherwise attached to the bridge end 15, or mayform one leg of the U, as has been hereinbefore explained, in connectionwith the rivets 18. In order to secure an adjustable non-metalliccomposition nose guard as 23 to the rear end of the wire 22, said wiremay terminate in a suitable spear end 24 whose. greatest width is,preferably greater than the diameter of the wire.

In any case, both the rivets 18 and the wire 22 ma be independent ofeach other, and screwe instead of permanently secured to the bridge endl5, so that the bridge may be removed, if desired, and anothersubstituted therefor.

' The spear 24 may be inserted into the interior of the compositionguard 23 by warming the guard sufiiciently to soften it and then forcingit on to the spear, surrounded by a suitable cement, such as is wellknown in the art, or the warming of the guard may be omitted anddependence had upon pressure alone to force the spear inside of theguard, and on the cement to maintain the parts in fixed relation, orboth heat and pressure may be employed. 1

In this construction, it will be seen that both the rivet 18 and thewire rod 22, fitting as they do quite closely into the holes in the lensframe, and at least one of the rivets being headed, prevent anypossibility of relative movement between the bridge end 15 and the lensframe into which it' is inserted, the groove 16 aiding towards this endby supporting the back, sides and bottom surface of the bridge. It willfurther be seen that the nose guard 23 may be adjusted in any directionincluding forwardly and upwardly so as to accurately fit the nose of thewearer. While the nose guard 23 has been described as being made ofcomposition, it will be understood that other material may be used forthis purpose, such as metal and that the reason of its peculiarconnection .to the bridge, is free to stretch at all points during theoperation of insertingthe lens into the groove 11, in a manner notheretofore possible with the types of clamps previously used forconnecting the bridge to a composition frame. I

It will also be seen that the bridge 12 makes an extremely rigidconnection between the frames, and by preventing relative movementthereof under ordinary conditions of use insures long life to the frameby preventing the metal at any point from cutting thereinto.

It will further be seen that I have provided a simple, effective andeconomical construction whereby the frames may berigidly connected and anose guard mounted for easy,

adjustment in all directions; that the invention may readilybe appliedto removable bridges, and that the bridge presents an ornamental highbridge effect with low bridge construction.

While I have shown and described a preferred embodiment of my invention,I do not wish to be understood as limiting myself thereto but intend toclaim my invention as broadly as may be permitted by the state of theprior art and the terms of the appended claims. K

I claim: v

1. In an optical mounting, a pair of lens frames, each having a groovetherein extending rearwardly from the front face thereof partway throughthe frame and provided with a rear face, sides and a bottom, a metallicbridge, ends on said bridge, each inserted into frictional engagementwith the rear face,

sides and bottom'of one of said grooves, and

securing means for said ends passing through the lens frame from thegroove thereof to the rear face of the frame and secured to andterminating at the rear face of said bridge.

2. In an optical mounting, a pair of nonmetallic lens frames, eachhaving a substantially vertical groove therein, a non-resilient metallicwire bridge rigidly but adjustably connecting said frames and comprisinga connecting part and integral depending ends at substantially rightangles to said part and substantially vertical to enter the grooves ofsaid frames, each of said ends being inserted into one of the grooves ofone of the frames with the front face of said end lving substantially inthe same plane as the front face of the frame, and means engaging saidbridge and said frame for securing the endof the bridge in place to theframe and for preventing movement thereof relatively to said frame andthereby preventing enlargement of the grooves, including an elongatedholding member soldered to the rear face of the bridge end and extendingrearwardly therefrom.

3. In an optical mounting, a pair of composition lens frames, eachhaving a groove on the front face .thereof, bounded by a rear surfaceintermediate the front and rear sur faces of the frame, by substantiallyupright sides and by a horizontal bottom, a non-resilient metallicbridge rigidly securing said frames together, each end of said bridgebeing inserted into one of the grooves with the front'face thereofparallel to the plane of the rear surface of the groove and to the planeof the front of the frame, and a pair of'rearwardly directed elongatedfastening members securing each end of the bridge in the groove of itsrespective frame and maintainmg the bridge end against movement in thegroove.

4. The combination with a pair of coinposition lens frames, each havinga substantially upright groove therein passing rearwardly part-waythrough the thickness thereof, of a non-resilient, metallic bridgerigidly securing adjacent portions of said frames together, the ends ofsaid bridge each being substantially vertical and being insertedrespectively into one of the grooves of k said frames, with the rearface of the bridge end arranged intermediate the front and rear faces ofthe frame, and the front face of said end parallel tothe plane of thefront of the frame, and securing means for each end of said bridgecomprising an elongated fastening member soldered to the rear face ofsaid end and extending rearwardly of said end and passing into thatportion of the frame behind said end, and having a headed part engagingthe frame.

5. In an optical mounting, a wire bridge,

substantially upright depending end portions on said bridge, a pair ofnon-metallic lens frames of greater thickness fronY front to back thanthat of the end portions, each of the frames having a lens groovetherein, and having a substantially upright groove spaced from the lensgroove and arranged between the peripheral'edges of the frame andterminating in a substantially flat face spaced forwardly of the rearface of the frame, and into which groove the bridge end portion isinserted, and a rearwardly extending perforation meeting the back of theupright groove, said end portion being supported along its rear surface,sides and bottom by the back, sides and bottom of the upright groovewith its front face exposed, and a .rearwardly extending securingelement for each of said bridge end portions arranged in the perforationand figured to one of said end portions and to the 6. In an opticalmounting, a metallic tening member bridge, substantially upright endportions on said bridge, a pair of non-metallic lens frames, each havinga lens groove, and having a substantially upright groove spaced inwardlyof the lens groove,'and of less depth measured from front to rear thanthat of the frame, and receiving one of the bridge end portions, theback, sides and bottom of the upright groove supporting said end againstmovement in said groove, and, a pair of spaced parallel rearwardlyextending perforations meeting the upright groove, 9. fasforce isexerted on the frames or bridge, andcooperating with the back, sides andbottom of the groove for that purpose. 7 In an optical mounting, ametallic substantially U-shaped bridge having spaced and substantiallyparallel end portions, a non-metallic lens frame having a face groovetherein open at the front and top and of insuflicient depth to passcompletely through the frame and of the size and shape of one of thebridge end portions, said portion being inserted into the groove withthe front face of said end portion exposed, said groove or each bridgeend portionhaving a rearwardly directed perforation therein meeting thegroove, a headed fastening member in said perforation secured to the endportion, and a second elongated fastening member secured to the endportion below the first-mentioned fastening member and of sufficientlength to extend into, and beyond the rear face of, the frame, andthereby aiding to secure the bridge in place, the rear extremity of theelongated member beyond the 'rear face of the frame being.adapted to besecured to a nose guard.

8. In an optlcal mounting, a lens frame of non-metallic materialprovided with a face groove open at the top and at the front of theframe and having a back surface 'arranged in a plane parallel andintermediate of the planes of the front and back of the frame, ametallic bridge substantially in the shape ofvan inverted U and of flatwire, sub-' stantially uniform in cross-section throughout, havlng itsend portion inserted into said face groove and supported by the surfacesthereof against movement relatively to the frame under the stress ofhandling the mounting and having its front face exposed at the front ofthe frame, a securing member extending rearwardly from the rear face ofthe bridge and and passing through that portion of the frame behind theback of the groove toward the rear face of the frame for aiding thegroove to secure the bridge end permanently to the frame, an elongatedmetallic fastening member secured to the rear face of the bridge end andsimilarly extending through the same portion of the frame rearwardly tocooperate with the securing member to hold the bridge end againstrotation relativel to the frame and being adapted to be forclblyinserted into a nose guard.

9. In an optical mounting, a non-metallic lens frame, a metallic brid e,and means for securing the end of saidbrldge to the frame including asubstantially flat groove back in the frame lying intermediate the frontand rear surfaces of the frame and of less height than that of saidframe and of less width than that between the peripheral surfaces of theframe, a pair of substantially parallel spaced groove sides arrangedsubstantially perpendicularly to the back and joining said back at theedges thereof, and extending to the front face of the frame, asubstantially horizontal bottom joining said sides and back andextending to the front face of the frame, said bridge end being ofsubstantially the same size and shape as the groove, a securing membersecured to the rear face of the bridge end and extending from said backtoward the rear face of the frame, and a second securing member securedto the rear face of the bridge end at a point spaced from saidfirst-mentioned member whereby said sides, back, and said members serveto maintain the bridge end in position in the frame and prevent thebridge end from cut ting into the non-metallic material of the frameunder the stress of handling the mounting. r

10. In an optical mounting, a pair of nonmetallic lens frames eachhaving a face groove therein below the top and above the bottom of theframe, and open only at the front and top and extending rearwardly fromthe front face thereof part-way through the thickness thereof, anon-resilient metallic bridge substantially rigidly connecting theframes and having a substantially horizontal part and substantiallyparallel ends connected by and integral with the hor izontal part, eachof said ends being inserted into and held in place by said grooveagainst lateral and transverse displacement with the,

rear face of the bridge end covered by'the' back of the groove and thesides of the bridge, end supported by the sides of the groove, andelongated securing members for the ends of the bridge connected to saidends and passing from said ends rearwardly into the frame and preventingrotation of the bridge end in the groove, and consequent cutting of thesides of the grooves by said bridge end.

' 11. In an optical mounting, a non-resilient bridge of flat metallicwire, a pair of nonone of the members.

metallic lens frames, a pair of substantially vertical end portions onsaid bridge, said end portions being similar to, and arranged in spacedrelation to each other, and means for securing each of said end portionsto the front face of the respective frames at corresponding portions ofsaid frames, compris ing an elongated metallic fastening element, soldersecuring the frontend of said element to the rear face of the bridge endportion to arrange said element with its'axis extending rearwardly atsubstantially right angles to the plane of the rear face of the bridgeend portion to which it is secured, a second elongated metallicfastening element arranged below the first-mentioned element, soldersecuring the front end of said second element to the rear face of saidend portion, one of said fastening elements being adapted to be forcedinto a composition nose-guard by heat and pressure and extendingrearwardly a sulficient distance to enter said nose guard, and anenlarged spear-shaped end portion on said last mentioned element, saidspear-shaped portion having converging side edges meeting at a point atthe extreme rear end of the element and being widened to prevent retraction of said element after the element has been forced into saidnose guard.

12. The combination with a pair of nonmetallic lens frames, of anon-resilient metallic bridge of U-shaped form joining said frames, apair of integral depending spaced end portions on said bridge having thefront faces thereof arrangedin the same plane, said end portions beingof substantially the same size' and shape, an elongated metallicfastening member for each of the end portions, soldered at its front endto the rear face of the end portion and extending rearwardly of the endportion and entering that part of the non-metallic material of the frameimmediately behind said bridge end portion, and a-sec'ond elongatedmetallic fastening member below the first-mentioned fastening membersoldered at its front end to the rear face of the end portion andpassing through the frame, and a widened and point ed spear-shapedrearend portion on at least 13. In an optical .mounting, a metallic bridge,depending end portions on the bridge, the front faces of said endportions lylng in the same plane and being exposed to view at the frontof said mounting, a pair of nonmetallic lens frames, and means forsecuring each of said bridge'end portions to a corresponding point ofeach of the frames comprising a pair of vertically spaced rearwardlydirected metallic fastening members. solder securing the front end ofeach of said members to the rear face of the bridge end portion, anenlarged head at the rear end of one of the members and a transverselywidened and pointed spear-shaped end portion on the metallic lensdepending end portions on' the brid e, rear faces on said end portionslying in t e same ing thereof.

rear end of the other of said members, of sufiic-(iient length toimbedded in a nose guar 14. In an ofptical mounting, a pair of nonrames,a metallic bridge, spaced plane and each arranged in contact with one ofthe lens frames, exposed front faces on said end portions, and meansforsecuring each of said end portions to the non-metallic frames comprisinga pair of independent vertically spaced, parallel and rearwardlydirected metallic fastening members, solder securing the front end ofeach of said members to the rear face of the bridge end portion, and aheaded rear end portlon on each of said members, at least one of saidheaded portions being widened transversely across the entire width ofsaid member and terminating in a point whereby said member may beimbedded into a. composition member by heat and pressureandis retainedin the member in which it is imbedded on the cool- EMANUEL PAPPER'I".

